Calorimetry: Principles and Applications

In course

PHYS-106(b): General physics : thermodynamics

Le but du cours de Physique générale est de donner à l'étudiant les notions de base nécessaires à la compréhension des phénomènes physiques. L'objectif est atteint lorsque l'étudiant est capable de prévoir quantitativement les conséquences de ces phénomène ...

Description

This lecture covers the fundamental concepts of calorimetry, including phenomenological laws, calorimetric coefficients, and the third principle of thermodynamics. The instructor begins by introducing calorimetry and its significance in thermodynamics, discussing key coefficients such as isochoric and isobaric heat capacities. The lecture emphasizes the relationships between temperature, pressure, and volume, illustrated through historical experiments by Boyle, Charles, and Avogadro. The third principle of thermodynamics is explained, highlighting its implications for entropy as temperature approaches absolute zero. The instructor also discusses Mayer and Reech relations, which connect different heat capacities, and explores the heat capacity of solids, referencing Dulong and Petit's law. Practical applications and experimental setups are presented to demonstrate the measurement of heat capacities, particularly focusing on water. The lecture concludes with a discussion on the behavior of heat capacities at varying temperatures, emphasizing the importance of understanding these concepts in the context of physical chemistry and material science.

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Instructors (2)

Nicolas Grandjean

Nicolas Grandjean received a PhD degree in physics from the University ofNice Sophia Antipolis in 1994 and shortly thereafter joined the French National Center for Scientific Research (CNRS) as a permanent staff member. In 2004, he was appointed tenure-track assistant professor at the École polytechnique fédérale de Lausanne (EPFL) where he created the Laboratory for advanced semiconductors for photonics and electronics. He was promoted to full professor in 2009. He was the director of the Institute of Condensed Matter Physics from 2012 to 2016 and then moved to the University of California at Santa Barbara where he spent 6 months as a visiting professor. Since 2018, he is the head of the School of Physics at the EPFL. He was awarded the Sandoz Family Foundation Grant for Academic Promotion, received the “Nakamura Lecturer” Award in 2010, the "Quantum Devices Award” at the 2017 Compound Semiconductor Week, and “2016 best teacher” award from the EPFL Physics School. His research interests are focused on the physics of nanostructures and III-V nitride semiconductor quantum photonics.

Sylvain Bréchet

Sylvain Bréchet was born on October 13th, 1981 in Moudon (legal origin Epesses, VD, Switzerland). He obtained a Master of Science in physics at EPFL in 2005. He went on to Cambridge for his PhD studies in theoretical cosmology from 2005 to 2009 under the supervision of Prof. Lasenby (FRS) and Prof. Michael Hobson at the Cavendish Laboratory of the University of Cambridge. He went back to EPFL where he is since 2010 university lecturer and research scientist in the Institute of Condensed Matter Physics. He taught classical mechanics, special relativity and thermodynamics to mechanical, electrical engineering students and physics students. He is currently writing a textbook in thermodynamics.

Official source

Calorimetry: Principles and Applications

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